Dual Suction Lip Switching for Bidirectional Floor Cleaning
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Solution Overview
Problem
Conventional cleaning devices designed as scrubbing/vacuum machines can only operate in a single direction, making them difficult to use in spatially restricted environments and requiring significant handling effort, especially when reversing direction.
Innovation Solution
A cleaning device with a pivotable handle and dual lip elements, where one lip is lowered and the other raised depending on the handle's position, allowing for bidirectional operation by automatically switching the suction channel to ensure efficient liquid removal without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cleaning device is designed with a single suction channel and single lip element for unidirectional operation, then the device structure is simple, but the device can only operate in one direction requiring significant handling effort in confined spaces
Solution Approach 1:
The single suction channel and lip element are segmented into two separate suction channels (first and second) with corresponding lip elements. This segmentation allows the device to have multiple independent suction paths that can be selectively activated based on the direction of travel, enabling bidirectional operation without increasing overall structural complexity
Solution Approach 2:
The handle is made pivotable relative to the cleaning head, creating a dynamic configuration that automatically switches between first and second positions based on the direction of travel. This dynamic handle positioning automatically activates the appropriate suction channel and lip element, allowing the device to adapt to bidirectional operation without requiring manual intervention or complex control mechanisms
2Adaptability or versatility
If the cleaning device operates in bidirectional mode with automatic suction channel switching, then the ease of operation in confined spaces is improved, but the device complexity increases due to multiple suction channels and switching mechanisms
Solution Approach 1:
The first and second suction channels are designed to be structurally identical and functionally interchangeable. Each suction channel includes a lip element, suction opening, and internal geometry that mirrors the other. This universal design allows either suction channel to perform the complete cleaning function independently, enabling bidirectional operation without requiring different suction path configurations for different directions
Solution Approach 2:
The second suction channel is essentially a copy of the first suction channel, with corresponding lip elements, suction openings, and internal structures replicated to provide identical functionality. This copying approach allows the device to have redundant suction capabilities in opposite directions without requiring complex custom-designed suction paths, thereby limiting the increase in device complexity
3Productivity
If both suction channels are pressurized with vacuum simultaneously, then liquid extraction capability is maximized, but energy consumption increases reducing battery life
Solution Approach 1:
Instead of continuously pressurizing both suction channels simultaneously, the system uses periodic action by selectively activating only one suction channel at a time based on the direction of travel. The handle position automatically determines which suction channel receives vacuum pressure, creating a periodic switching pattern that maintains liquid extraction capability while minimizing energy consumption by avoiding simultaneous operation of both suction systems
Solution Approach 2:
The system applies partial action by pressurizing only one suction channel at a time rather than both. This partial activation is sufficient for effective liquid extraction since only the suction channel at the rear in the direction of travel needs to be active. This approach avoids the excessive energy consumption that would result from simultaneously pressurizing both suction channels while maintaining adequate cleaning productivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient cleaning in both directions of travel with reduced handling effort, as the device automatically adjusts suction channels and lip positions, optimizing energy use and extending the battery life of cordless operation.
Implementation Method 1
a first suction channel (30) connected to the first lip element and suitable for extracting liquid from the surface to be cleaned, and a second suction channel (32) connected to the second lip element and suitable for extracting liquid from the surface to be cleaned
Data Source
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AI summary
A cleaning device comprises a handle (14) and a cleaning head (12) which is movable on a surface to be cleaned, wherein the cleaning head (12) has at least one rotatable cleaning roller (16, 18) and a first lip element (22) which is arranged adjacent to a first suction channel (32) which can be pressurized with a vacuum by means of a suction pump (44), and the cleaning head (12) has a second lip element (24) which is arranged adjacent to a second suction channel (32) which can be pressurized with a vacuum by means of the suction pump (44).The first lip element (22) and the second lip element (24) are each movable between a raised position and a lowered position, and the handle (14) is pivotable such that in a first position of the handle (14) relative to the cleaning head (12) the first lip element (22) is in the lowered position and the second lip element (24) is in the raised position, and in the second position of the handle (14) relative to the cleaning head (12) the first lip element (22) is in the raised position and the second lip element (24) is in the lowered position.